Question
Read the passage given below and answer the following questions from (i) to (v). Boyle’s law is a gas law which states that the pressure exerted by a gas (of a given mass, kept at a constant temperature) is inversely proportional to the volume occupied by it. In other words, the pressure and volume of a gas are inversely proportional to each other as long as the temperature and the quantity of gas are kept constant. For a gas, the relationship between volume and pressure (at constant mass and temperature) can be expressed mathematically as follows.$\text{P}\infty(\frac{1}{\text{V}})$ Where P is the pressure exerted by the gas and V is the volume occupied by it. This proportionality can be converted into an equation by adding a constant, k.
Charles law states that the volume of an ideal gas is directly proportional to the absolute temperature at constant pressure. The law also states that the Kelvin temperature and the volume will be in direct proportion when the pressure exerted on a sample of a dry gas is held constant. Charles law and Boyle’s law applied to low density gas only. The total pressure of a mixture of ideal gases is the sum of partial pressures. This is Dalton’s law of partial pressures.
  1. Boyle’s law is obeyed by high as well as low density gases. True or False?
  1. True
  2. False
  1. Charles law is states that volume of an ideal gas is directly proportional to temperature at constant
  1. Temperature
  2. Pressure
  3. Volume
  4. None of these
  1. State Daltons law of partial pressures
  2. State Boyle’s law
  3. State Charles law

Answer

  1. (a) True
  2. (b) Pressure
  3. The total pressure of a mixture of ideal gases is the sum of partial pressures exerted by all the molecules of gas. This is Dalton’s law of partial pressures.
  4. Boyle’s law is a gas law which states that at constant temperature the pressure exerted by a gas is inversely proportional to the volume occupied by it. In other words, the pressure and volume of a gas are inversely proportional to each other as long as the temperature and the quantity of gas are kept constant. For a gas, the $\text{P}\infty(\frac{1}{\text{V}})$ Where P is the pressure exerted by the gas and V is the volume occupied by it. This proportionality can be converted into an equation by adding a constant k.
  5. Charles law states that the volume of an ideal gas is directly proportional to the absolute temperature at constant pressure.

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